<?php

class MyCaptcha extends CCaptcha {

    public $model;
    public $attribute;
    public $transparent = true;

    public function run() {
        echo CHtml::openTag("div", array("class" => 'row'));
        parent::run();
        echo CHtml::activeTextField($this->model, $this->attribute, array("class" => 'captcha'));
        echo CHtml::closeTag("div");
    }
}
